CN105398366B - A kind of caravan list bilateral expansion compartment transmission mechanism acted on differential with locking - Google Patents
A kind of caravan list bilateral expansion compartment transmission mechanism acted on differential with locking Download PDFInfo
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- CN105398366B CN105398366B CN201510834072.0A CN201510834072A CN105398366B CN 105398366 B CN105398366 B CN 105398366B CN 201510834072 A CN201510834072 A CN 201510834072A CN 105398366 B CN105398366 B CN 105398366B
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- Prior art keywords
- locking
- differential
- screw mandrel
- caravan
- locking rod
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60P—VEHICLES ADAPTED FOR LOAD TRANSPORTATION OR TO TRANSPORT, TO CARRY, OR TO COMPRISE SPECIAL LOADS OR OBJECTS
- B60P3/00—Vehicles adapted to transport, to carry or to comprise special loads or objects
- B60P3/32—Vehicles adapted to transport, to carry or to comprise special loads or objects comprising living accommodation for people, e.g. caravans, camping, or like vehicles
- B60P3/34—Vehicles adapted to transport, to carry or to comprise special loads or objects comprising living accommodation for people, e.g. caravans, camping, or like vehicles the living accommodation being expansible, collapsible or capable of rearrangement
Abstract
The invention discloses a kind of caravan list bilateral expansion compartment transmission mechanism acted on differential with locking, including motor, reductor, differential mechanism and lead screw pair, the driving motor output shaft is connected with reductor input shaft, the reductor is connected with differential mechanism, the both sides of the differential mechanism are connected with screw mandrel, the nut coordinated with screw mandrel is fixed on expanded shelter, and the hand of spiral of the screw mandrel positioned at differential mechanism both sides is on the contrary, the screw mandrel end is provided with the lockable mechanism for hindering screw mandrel to rotate.The mechanism low cost of manufacture, it is rational in infrastructure, receive and expand while left and right sides compartment can be realized, or the unilateral compartment of any side extends, selection is flexible.
Description
Technical field
The present invention relates to a kind of compartment transmission mechanism, more particularly to a kind of caravan Dan Shuan acted on differential with locking
Side expanded shelter transmission mechanism.
Background technology
Authorization Notice No. discloses a kind of " two-way expanded shelter transmission of caravan for CN203766593U Chinese invention patent
Mechanism ", its driving motor output shaft flange is connected with single reduction final drive flange；Differential casing and driven wheel of differential and planet
Gear shaft is connected, and planet carrier is constituted, as driving link；Both sides axle shaft gear is driven member, and torque is passed to by spline
Oppositely oriented left and right leading screw, the feed screw nut of expanded shelter web is fixed on to drive, realize compartment just or reversely simultaneously
Receive and expand.The structure can utilize the differential function of differential mechanism, when in side compartment, extension is obstructed, and can be realized by differential mechanism unilateral
Extension, but the mechanism does not have active selection function.That is, when only needing unilateral extension, it is impossible to choose at random, or
Person must artificially hinder the compartment of side to extend to achieve the goal by other instruments, design inadequate hommization, practical operation
It is more inconvenient, it is therefore desirable to be improved.
The content of the invention
It is an object of the invention to provide a kind of caravan list bilateral expansion compartment transmission mechanism acted on differential with locking,
Realize that autonomous selection is unilateral or bilateral compartment extends.
The technical scheme is that such：A kind of caravan list bilateral expansion compartment acted on differential and locking is passed
Motivation structure, including motor, reductor, differential mechanism and lead screw pair, the driving motor output shaft connect with reductor input shaft
Connect, the reductor is connected with differential mechanism, the both sides of the differential mechanism are connected with screw mandrel, the nut coordinated with screw mandrel is fixed on expansion
Compartment is opened up, the hand of spiral of the screw mandrel positioned at differential mechanism both sides is on the contrary, the both sides screw mandrel end is equipped with obstruction screw mandrel
The lockable mechanism of rotation.
Further, the lockable mechanism is included outside the locking rod axle affixed with the overhanging shaft end of screw mandrel, the locking rod axle
The face of cylinder is arranged with the lock claw sliding sleeve with lock claw, and the bearing air cover outer rim of the screw mandrel is provided with the pawl groove being engaged with lock claw,
The hand push locking rod of axial stretching is provided with the locking rod axle, the hand push locking rod surface is provided with steel-ball groove, the locking
Bar axle, which is provided with steel ball through hole, the steel ball through hole, is provided with locking steel ball, and the locking steel ball size is more than the wall of locking rod axle
Thickness, the inwall of the lock claw sliding sleeve is axially spaced to be provided with self-locking grooves and lock groove.
It is preferred that, when the hand push locking rod steel-ball groove is in locking steel ball lead to the hole site, locking steel ball crashes into steel-ball groove,
Because steel ball peak is slightly below the plain line of locking rod axle external cylindrical surface, lock claw sliding sleeve can be on locking rod axle with cunning, the locking
When groove is connected with through hole and locking steel ball is in hand push locking rod external cylindrical surface, lock claw sliding sleeve is realized with locking rod axle in self-locking grooves
Axially position and locking.
It is preferred that, lock claw sliding sleeve lock claw and bearing air cover outer rim pawl groove snap-fit.
It is preferred that, axle spring is provided between the hand push locking rod and locking rod axle.
It is preferred that, output shaft center and the reductor input shaft central coaxial of the motor.
It is preferred that, based on the reductor, driven wheel of differential structure, output shaft is arranged vertically with input shaft.
It is preferred that, the differential mechanism is symmetrical expression bevel differential.
In one particular embodiment of the present invention, it is described also including the screw mandrel supporting shell being fixedly connected with vehicle rail
Screw mandrel supporting shell is U-shaped feed screw nut's motion chamber provided with section, and supporting shell two ends are provided with bearing block, and bearing air cover is fixed on branch
Hold shell both ends of the surface.
It is preferred that, in order to reach good dust-proof effect, the opening both sides of the supporting shell feed screw nut motion chamber are along length
Direction is spent to be provided with the inside of dust protection rubber plate, the bearing air cover provided with dust-proof felt.
The beneficial effect of technical scheme provided by the present invention is, by the locking of lockable mechanism, can be flexibly according to difference
Use environment selection locking side compartment, realize the mobile effect in the one side of expanded shelter.It can also pass through in driving way
The locking of lockable mechanism avoids micro- rotation of screw mandrel, prevents the micro-displacement in compartment, improves travel safety.
Brief description of the drawings
Fig. 1 is that structure of the present invention arranges schematic diagram.
Fig. 2 is lockable mechanism lockup state schematic diagram.
Fig. 3 is lockable mechanism disengaged condition schematic diagram.
Embodiment
With reference to embodiment, the invention will be further described, but not as a limitation of the invention.
Refer to Fig. 1 and Fig. 2, the two-way expanded shelter transmission mechanism of caravan, including motor 1, reductor 2, differential mechanism
3rd, lead screw pair 4 and lockable mechanism 20.24V direct current generators may be selected in motor 1, are supplied through the original battery of automobile or generator
Electricity.The frame of motor 1 is fastened on direct current generator installing plate by bolt and rubber blanket；Direct current generator installing plate then passes through
U-bolt fastening plates are simultaneously fastened on the left-right longeron of chassis by U-bolt.The output shaft of motor 1 is through flat key, tightly
Gu nut is simultaneously fastenedly connected by flange with the flange of bolt and reductor 2.The output shaft center of motor 1 and reductor 2
Input shaft central coaxial；Simultaneously axis with left and right leading screw 4a in the same plane.Reductor 2 uses driving and driven bevel gear structure,
Play a part of changing power direction of transfer and slowing down increasing square.The preferred symmetrical expression bevel differential of differential mechanism 3 is planetary gear
Differential mechanism；The differential mechanism 3 is made up of differential carrier, planetary gear shaft, planetary gear, axle shaft gear.The power of motor 1
After reductor 2, differential mechanism 3 is passed to, then pass to left and right lead screw pair 4.Specific power transmission circuit be motor 1 →
Drive bevel gear → driven wheel of differential → differential carrier → planetary gear shaft → planetary gear → axle shaft gear → lead screw pair 4.Difference
The both sides axle shaft gear of fast device 3 and screw mandrel 4a spline connections.Power passes to left and right screw mandrel 4a through axle shaft gear by spline.
The left and right screw mandrel 4a hand of spiral is on the contrary, left side can be left hand thread；Correspondence right side is right-handed thread.Corresponding feed screw nut 4b
Its screw thread is matched with screw mandrel 4a, and lead screw pair 4 is cooperatively formed by screw mandrel 4a and nut 4b, rotation is changed into linear motion.Screw mandrel
The material of supporting shell 5 is cast iron, moves chamber 6 provided with section for U-shaped feed screw nut, U-shaped opening is upward.Screw mandrel supporting shell 5 passes through
The housing of bolt and main reducing gear part is affixed, is then anchored on fixed plate by U-bolt on left-right longeron.Screw mandrel is supported
The structure of the left and right ends of shell 5 is cylinder axis bearing 7, interior assembling deep groove ball bearing 10 and bearing air cover 8.Bearings at both ends transparent cover
8 are anchored on the end face of screw mandrel supporting shell 5 with bolt, in order to dust-proof, and bearing air cover 8 is built with dust-proof felt 9.
Fig. 2 and Fig. 3 is referred to, the concrete structure of lockable mechanism 20 is such, and the overhanging shaft end of lead screw pair 4 is fixedly connected
Locking rod axle 21, the external cylindrical surface of locking rod axle 21 is sheathed with axially slidable lock claw sliding sleeve 22, and lock claw sliding sleeve 22 is saturating by bearing
The side of lid 8 is machined with lock claw 22c, the pawl groove 8a that the processing of the outer rim of bearing air cover 8 fastens with lock claw 22c.Opened in locking rod axle 21
If blind hole, the hand push locking rod 23 being axially movable is inserted in blind hole, the surface of hand push locking rod 23 is provided with steel-ball groove 23a, lock
Only the cylinder jacket wall of bar axle 21 opens up a through hole 21a, and the locking steel ball for axially position and locking is put into through hole 21a
24, locking steel ball 24 is axially spaced to open up self-locking grooves with diameter greater than the wall thickness of locking rod axle 21 in the inwall of lock claw sliding sleeve 22
22a and lock groove 22b.Hand push locking rod 23 is promoted, locking steel ball 24 is at steel-ball groove 23a, steel ball 24 drops (in caravan
Complete rounding state, the position of locking rod axle 21 is to determine, therefore through hole 21a is in top), because steel ball peak is slightly below
Locking rod axle external cylindrical surface element line, lock claw sliding sleeve 22 can slide axially to realize locking or separation along locking rod axle 21.Work as lock
When pawl sliding sleeve 22 is in self-locking grooves 22a or lock groove 22b and connected with the through hole 21a of locking rod axle 21, at lockable mechanism 20
In disengagement or lockup state, hand push locking rod 23 is decontroled, hand push locking rod 23 bounces back under the spring-force driven dual of locking spring 25, lock
Only steel ball 24 be in the external cylindrical surface of hand push locking rod 23, now, locking steel ball 24 be in lock claw sliding sleeve 22 self-locking grooves 22a or
At lock groove 22b, lock claw sliding sleeve 22 is realized in disengagement or the axially position and locking of lockup state.Opened up in locking rod axle 21
Blind hole be stepped hole, at step set axial direction locking spring 25, locking lock spring 25 one end be pressed against stepped hole
On end face, the other end is resisted against on the shaft shoulder of hand push locking rod 23, in the other end of the shaft shoulder of hand push locking rod 23, there is a limited cover
Plate 26, the spacing cover plate 26 is anchored on the end face of locking rod axle 21 with screw, and the shaft end of hand push locking rod 23 is through in spacing cover plate 26
Hole is overhanging, for manually operated.
Fig. 1, Fig. 2 are referred to, left and right feed screw nut 4b upper surfaces respectively have in another specific embodiment of the present invention
Four screwed holes, upper four spiral shells of web (web length preferably is identical with expanded shelter length) with left and right expanded shelter bottom
Hole (unthreaded hole) position matches, and is fastened by hexagon socket head cap screw.When wanting unilateral extension compartment, the hand for not extending side is promoted
Locking rod 23 is pushed away, locking steel ball 24 falls into the steel-ball groove 23a on the surface of hand push locking rod 23, slides lock claw sliding sleeve 22, slides lock claw
Set 22 and the lock claw 22c of one engage with the pawl groove 8a of the outer rim of bearing air cover 8, and now lock groove 22b and locking rod axle 21 lead to
Hole 21a is connected, and decontrols hand push locking rod 23, under the effect of the elastic force of locking spring 25, and the external cylindrical surface of hand push locking rod 23 is by locking
The jack-up of steel ball 24 enters lock groove 22b, realizes the axially position and locking of lockup state.Because lateral filament bar 4a is through locking rod
Axle 21 make it that lock claw 22c is sticked in the pawl groove 8a of the outer rim of bearing air cover 8 with locking steel ball and lock claw sliding sleeve 22, locking rod axle 21
It is relatively fixed by locking steel ball 24, lock claw sliding sleeve 22 and bearing air cover 8, power can not be transmitted, realizes the locking of the side, should
Side compartment can not be extended, and opposite side is transmitted by power, drive expanded shelter to be moved with the speed of former 2 times of speed by feed screw nut 4b
It is dynamic, that is, realize the independent extension in side compartment.
Fig. 3 is referred to, it is necessary to both sides compartment extends simultaneously when, only need in another specific embodiment of the present invention
Promote hand push locking rod 23 again, locking steel ball 24 falls into the steel-ball groove 23a on the surface of hand push locking rod 23, by lock claw sliding sleeve 22 and
The lock claw 22c of one is pulled out out of pawl groove 8a, and self-locking grooves 22a decontrols hand push locking after being connected with the through hole 21a of locking rod axle 21
Bar 23, under the effect of the elastic force of locking spring 25, the jack-up of locking steel ball 24 is entered hand push locking by the external cylindrical surface of hand push locking rod 23
The jack-up of locking steel ball 24 is entered self-locking grooves 22a by the surface of bar 23, and lock claw sliding sleeve 22 is in disengaged condition, does not play locking,
And can jointly be rotated with leading screw 4a and locking rod axle 21, transmitted by power, drive expanded shelter to move by feed screw nut 4b,
Realize that left and right extends or shunk simultaneously.To prevent during the lock claw 22c of lock claw sliding sleeve 22 and one is pulled out out of pawl groove 8a
Slip, the spacing circumferential external cylindrical surface for being more than locking rod axle 21 of cover plate 26, and self-locking grooves 22a and lock groove 22b center
It is equal away from the inner side end distance with the end face outside of lock claw sliding sleeve 22 to spacing cover plate 26, is easy to positioning, convenient operation.
It is corresponding with feed screw nut 4b farthest on screw mandrel supporting shell 5 in another specific embodiment of the present invention
End, most proximal end can set travel switch or use position sensor, in the axially mounted contact signal of lock claw sliding sleeve 22, i.e. both sides
Lock claw sliding sleeve 22 is not at lock position, and the Control motor 1 of two series connection works, and realizes and extend simultaneously；When
When side lock claw sliding sleeve 22 is in lock position, contact signal has cut off the control circuit of the side, and side control circuit does not work；
And other side travel switch is then in control working condition；Control circuit must be that the distalmost end or most proximal end of other side are touched
After point signal is produced, motor 1 just stops operating.Both sides extend simultaneously when, rotating forward for motor 1 controls two
The extension in side compartment；Rotating backward for motor 1, controls the contraction in both sides compartment.Motor 1 is by changing in rotating
To switch control, control circuit must be that motor 1 just stops turning after two contact signals of distalmost end or most proximal end are produced
It is dynamic.
Fig. 2 is referred to, the present invention's and then in a specific embodiment, when caravan prepares to sail out of spot camping,
Both sides lockable mechanism is in lockup state, it is to avoid the screw mandrel caused by road conditions are jolted and taken a sudden turn is micro- in driving way rotates
With the micro-displacement in compartment, to improve travel safety.
Claims (7)
1. a kind of caravan list bilateral expansion compartment transmission mechanism acted on differential with locking, including motor (1), deceleration
Machine (2), differential mechanism (3) and lead screw pair (4), motor (1) output shaft are connected with reductor (2) input shaft, described to subtract
Fast machine (2) is connected with differential mechanism (3), and the both sides of the differential mechanism (3) are connected with screw mandrel (4a), the nut coordinated with screw mandrel (4a)
(4b) is fixed on expanded shelter, and the hand of spiral of the screw mandrel (4a) positioned at differential mechanism (3) both sides is opposite, it is characterised in that：
Screw mandrel (4a) end includes and screw mandrel provided with the lockable mechanism (20) for hindering screw mandrel (4a) to rotate, the lockable mechanism (20)
Lock claw sliding sleeve (22) is arranged on the locking rod axle (21) that (4a) is fixedly connected, the locking rod axle (21), the screw mandrel (4a)
Bearing air cover (8) outer rim is provided with the pawl groove (8a) for holding lock claw (22c) to be engaged with lock claw sliding sleeve (22), the locking rod axle (21)
The interior hand push locking rod (23) provided with axial stretching, hand push locking rod (23) surface is provided with steel-ball groove (23a), the locking
Bar axle (21) cylinder jacket wall, which is provided with through hole (21a), the through hole (21a), is provided with locking steel ball (24), the locking steel ball
(24) with diameter greater than the wall thickness of locking rod axle (21), the inwall of the lock claw sliding sleeve (22) is axially spaced to be provided with self-locking grooves
(22a) and lock groove (22b).
2. the caravan list bilateral expansion compartment transmission mechanism according to claim 1 acted on differential with locking, it is special
Levy and be：When the self-locking grooves (22a) connect with through hole (21a), lock claw sliding sleeve (22) and lock claw (22c) in conjunction depart from
Pawl groove (8a), when the lock groove (22b) connects with through hole (21a), lock claw (22c) engages with pawl groove (8a).
3. the caravan list bilateral expansion compartment transmission mechanism according to claim 1 acted on differential with locking, it is special
Levy and be：Axle spring (25) is provided between the hand push locking rod (23) and locking rod axle (21).
4. the caravan list bilateral expansion compartment transmission mechanism according to claim 1 acted on differential with locking, it is special
Levy and be：The output shaft center of the motor (1) and reductor (2) input shaft central coaxial.
5. the caravan list bilateral expansion compartment transmission mechanism according to claim 1 acted on differential with locking, it is special
Levy and be：Based on the reductor (2), driven wheel of differential structure, output shaft is arranged vertically with input shaft.
6. the caravan list bilateral expansion compartment as claimed in any of claims 1 to 5 acted on differential with locking
Transmission mechanism, it is characterised in that：Also include the screw mandrel supporting shell (5) being fixedly connected with vehicle rail, the screw mandrel supporting shell (5)
It is U-shaped feed screw nut's motion chamber (6) provided with section, supporting shell (5) two ends are provided with bearing block (7), and bearing air cover (8) is fixed on
Supporting shell (5) both ends of the surface.
7. the caravan list bilateral expansion compartment transmission mechanism according to claim 6 acted on differential with locking, it is special
Levy and be：The opening both sides of supporting shell (5) the feed screw nut motion chamber (6) are provided with dust protection rubber plate along its length, described
Dust-proof felt (9) is provided with the inside of bearing air cover (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510834072.0A CN105398366B (en) | 2015-11-26 | 2015-11-26 | A kind of caravan list bilateral expansion compartment transmission mechanism acted on differential with locking |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510834072.0A CN105398366B (en) | 2015-11-26 | 2015-11-26 | A kind of caravan list bilateral expansion compartment transmission mechanism acted on differential with locking |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105398366A CN105398366A (en) | 2016-03-16 |
| CN105398366B true CN105398366B (en) | 2017-07-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510834072.0A Active CN105398366B (en) | 2015-11-26 | 2015-11-26 | A kind of caravan list bilateral expansion compartment transmission mechanism acted on differential with locking |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105398366B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108269627B (en) * | 2016-12-30 | 2019-09-17 | 核动力运行研究所 | A kind of reactor pressure vessel adapter tube safe end scanning equipment of gamut scanning |
| CN107433974B (en) * | 2017-08-11 | 2019-05-07 | 安徽江淮汽车集团股份有限公司 | Steering drive axle connection structure |
| CN108058636A (en) * | 2018-01-24 | 2018-05-22 | 连云港中昊房车有限公司 | The automatic extension mechanism of caravan and caravan |
| CN108275583B (en) * | 2018-03-15 | 2020-03-27 | 广厦建设集团有限责任公司 | Ultrahigh-rise external hanging movable arm tower crane support frame and mounting method thereof |
| CN109572530A (en) * | 2019-01-17 | 2019-04-05 | 湖南机电职业技术学院 | A kind of caravan list bilateral expansion compartment transmission mechanism with differential and locking effect |
| CN109895680A (en) * | 2019-03-25 | 2019-06-18 | 常熟理工学院 | A kind of caravan list bilateral expansion compartment transmission mechanism of electromagnetism locking |
| CN113071403B (en) * | 2021-05-13 | 2022-02-01 | 荣成名骏户外休闲用品股份有限公司 | Scalable extension usable floor area's intelligent car as a house |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5902001A (en) * | 1997-03-25 | 1999-05-11 | Applied Power, Inc. | Expandable room flat floor system utilizing notched inner rails and ramped outer rails |
| CN201010994Y (en) * | 2007-02-16 | 2008-01-23 | 溧阳二十八所系统装备有限公司 | Expandable square compartment |
| CN201566551U (en) * | 2009-12-29 | 2010-09-01 | 北京三兴汽车有限公司 | Vehicular extensible square cabin body |
| CN201646529U (en) * | 2010-05-04 | 2010-11-24 | 中通客车控股股份有限公司 | Automated and semi-automated transmission mechanism for house car moving box stretching |
| CN202159760U (en) * | 2011-05-11 | 2012-03-07 | 北京新兴东方自动控制系统有限公司 | Radar antenna folding and unfolding apparatus |
| CN203766593U (en) * | 2014-03-19 | 2014-08-13 | 常熟理工学院 | Touring car two-way extension carriage transmission mechanism |
-
2015
- 2015-11-26 CN CN201510834072.0A patent/CN105398366B/en active Active
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| Publication number | Publication date |
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| CN105398366A (en) | 2016-03-16 |
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Effective date of registration: 20220317 Address after: 215500 5th floor, building 4, 68 Lianfeng Road, Changfu street, Changshu City, Suzhou City, Jiangsu Province Patentee after: Changshu intellectual property operation center Co.,Ltd. Address before: 215500 Changshou City South Three Ring Road No. 99, Suzhou, Jiangsu Patentee before: CHANGSHU INSTITUTE OF TECHNOLOGY |
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